Score = 135 bits (341), Expect = 6e-32, Method: Composition-based stats.
Identities = 59/82 (71%), Positives = 68/82 (82%)
Query: 1 MILIAFSLIVTTRQYVGNPIDCVHTKDIPEDVLNTYCWIHSTYTIRAAFKKKVGVAVPYP 60
MIL++FSLI+TTRQYVGNPIDCVHTKDIPEDVLNTYCWI STYT+++ F KK GV+VPYP
Sbjct: 33 MILMSFSLIITTRQYVGNPIDCVHTKDIPEDVLNTYCWIQSTYTLKSLFLKKQGVSVPYP 92
Query: 61 GVDNSRGKVEDRKTYGYYHLSC 82
G+ NS G D+K Y YY C
Sbjct: 93 GIGNSDGDPADKKHYKYYQWVC 114
Structural component of the gap junctions at electrical synapses in distal and mid-depth levels in the lamina. Isoform Lethal forms voltage sensitive intercellular channels through homotypic interactions.
Score = 85.5 bits (210), Expect = 8e-17, Method: Composition-based stats.
Identities = 38/82 (46%), Positives = 54/82 (65%), Gaps = 1/82 (1%)
Query: 1 MILIAFSLIVTTRQYVGNPIDCVHTKDIPEDVLNTYCWIHSTYTIRAAFKKKVGVAVPYP 60
++L+ SLI+T QYVG PI C+ +P V+NT+CWIHST+T+ AF+++VG V +P
Sbjct: 33 VLLLTCSLIITATQYVGQPISCI-VNGVPPHVVNTFCWIHSTFTMPDAFRRQVGREVAHP 91
Query: 61 GVDNSRGKVEDRKTYGYYHLSC 82
GV N G + +K Y YY C
Sbjct: 92 GVANDFGDEDAKKYYTYYQWVC 113
Structural component of the gap junctions. Essential for generation and/or maintenance of postembryonic neuroblasts and normal development of optic lobe.
Drosophila melanogaster (taxid: 7227)
>sp|Q9XYN1|INX2_SCHAM Innexin inx2 OS=Schistocerca americana GN=inx2 PE=1 SV=1
Structural component of the gap junctions that specifically coordinates left-right asymmetry in the developing nervous system. Acts by forming gap junction network linking embryonic neurons and providing electrical coupling between cells, leading to promote or inhibit AWC signaling. Required for the left and right AWC olfactory neurons to establish asymmetric patterns of gene expression during embryogenesis. Acts autonomously.
Structural component of the gap junctions that specifically coordinates left-right asymmetry in the developing nervous system. Acts by forming gap junction network linking embryonic neurons and providing electrical coupling between cells, leading to promote or inhibit AWC signaling.
Caenorhabditis briggsae (taxid: 6238)
Close Homologs in the Non-Redundant Database Detected by BLAST
This family includes the drosophila proteins Ogre and shaking-B, and the C. elegans proteins Unc-7 and Unc-9. Members of this family are integral membrane proteins which are involved in the formation of gap junctions. This family has been named the Innexins. Length = 341
These proteins have been named innexins []. Gap junctions are composed of membrane proteins, which form a channel permeable for ions and small molecules connecting cytoplasm of adjacent cells. Although gap junctions provide similar functions in all multicellular organisms, until recently it was believed that vertebrates and invertebrates use unrelated proteins for this purpose. While the connexins family of gap junction proteins is well- characterised in vertebrates, no homologs have been found in invertebrates. In turn, gap junction molecules with no sequence homology to connexins have been identified in insects and nematodes. It has been suggested that these proteins are specific invertebrate gap junctions, and they were thus named innexins (invertebrate analog of connexins) []. As innexin homologs were recently identified in other taxonomic groups including vertebrates, indicating their ubiquitous distribution in the animal kingdom, they were called pannexins (from the Latin pan-all, throughout, and nexus-connection, bond) [, , ]. Genomes of vertebrates carry probably a conserved set of 3 pannexin paralogs (PANX1, PANX2 and PANX3). Invertebrate genomes may contain more than a dozen pannexin (innexin) genes. Vinnexins, viral homologs of pannexins/innexins, were identified in Polydnaviruses that occur in obligate symbiotic associations with parasitoid wasps. It was suggested that virally encoded vinnexin proteins may function to alter gap junction proteins in infected host cells, possibly modifying cell-cell communication during encapsulation responses in parasitized insects [, ]. Structurally pannexins are simillar to connexins. Both types of protein consist of a cytoplasmic N-terminal domain, followed by four transmembrane segments that delimit two extracellular and one cytoplasmic loops; the C- terminal domain is cytoplasmic.; GO: 0005921 gap junction